Rule.



Patented Apr. l, |902.

W. & 0. G. MEYER.

RULE'.

(Application led Dec. 6, 1901:)

(No Model.)

:u: norms lanzas co., PHOTO-mmc., wrswmmnn. o4 c.

' UNITED STATES PATENT OFFICE.

WILLIAMMEYER AND orroc. MEYER, or sHEBoYcAN, WISCONSIN.

RULE.

SPECIFICATIQN forming part of Letters Patent No. 696,687, dated April 1, 1902.

i Application tiled December 6, 1901. Serial No. 84,941. (No model.)

To @ZZ whom t may concern:

Be it known that we, WILLIAM MEYER and OTTO G. MEYER, citizens of the United States, residing at Sheboygan, in the county of Sheboygan and State of Wisconsin,have invented a new, and useful Rule, of which the following is a specification.

Y The invention relates to improvements in rules. f

The object of the present invention is to improve the construction of rules, more especially that class of rules which are provided With gages, and to provide a rule vof this character of simple and inexpensive construction having a gage capable of being extended laterally from the rule and capable of being used with the same facility as a pair of calipers for measuring round and other shaped bodies.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure l is a side elevation of a rule constructed in accordance with this invention, the gage being arranged for use. Fig. 2 is a side elevation, partlyin section, the arms of the gage being folded. Fig, 3 is a detail perspective view of the extensible gage-bar, illustrating the construction of the head, the folding arm being extended. Fig. 4 is a detail perspective view of the casing or support upon which the. other arm is mounted. Fig. 5 is a transverse sectional view.

Like numerals of reference designate corresponding parts in all the figures ofthe d raw- Ings. f

l and 2 designate legs of a jointed rule, each leg being preferably composed of two sections or pieces and adapted to fold together in the usual manner. the leg l is provided With a longitudinal dovetailed groove or way 3, receiving an extensible gage-bar 4, having beveled side edges to conform to the configuration of the dovetailed way or groove 3. The gage-baxgwhich is graduated, is provided at its outer end with a transverse head 5, extending toward the other leg and having its outer end flush with the outer side face or edge of the leg 2 when The outer section or piece of the parts are arranged as illustrated in Fig.

l. The head 5 of the gage, which may be constructed in any suitable manner, is provided at its inner edge with a longitudinal groove 6 for the reception of a foldable arm 7, which is pivoted at one end bya rivet 8 or other suitable fastening device to the head at one end thereof and which is adapted to swing inward and outward from the position illustrated in Fig. l of the drawings to that shown in Fig. 2, and when the arm 7 is a1'- ranged as shown in Fig. 2 the head ofthe gage forms a casing or housing` for it, and it is concealed and protected by the head. The head maybe composed of side pieces and an intermediate spacing ,block or piece 9, as clearly illustrated in Fig. 3, and the side or piece l0 is provided with a notch to expose a portion of the arm 7, which is grooved or notched to enable it to be readily engaged by the oper ator to open it.

When the arm 7 is extended, as shown in Fig. l, it projects a considerable distance beyond the rule and is arranged transversely thereof to cooperate with an arm ll, which is pivoted bya rivet l2 or other suitable fastening device to an approximately L-shaped casing or support 13, which is secured to the outer section of the leg 2. The L-shaped support or casing is preferably composed of tWo -sides spaced apart to form a groove or opening 14 for the reception of the arm 11, and one of the sides of the support or casing is cut away to expose a groove or notch 15 of the arm 1l to enable the same to be readily opened. The sides of the casing or support are suitably secured to the outer section of the leg 2 of the rule, and Vit forms a portion of the same, the groove or opening extending along the inner edge and the outer end of the section to permit the arm- 11 to swing from the position shown in Fig. l to that illustrated in Fig. 2.

The laterally-extending foldable arms are adapted to enable various bodies to be measured with the same facility as with a pair of calipers, and measurements may be taken by means of the said arms which would be impossible without the arms.

It Will be seen that the gage is exceedingly simple and inexpensive in construction, that it is adapted to be readily applied to a rule,

and that the arms are capable of being compactly folded and concealed when not in use, and that they are also adapted to be readily swung outward and arranged for use.

That we claim is l. In a device of the class described, the combination with a rule, of a gage-bar mounted upon one of the legs of the rule and having a head, an arm pivotally mounted on the other leg of the rule and adapted to extend from the latter, and a pivoted arm carried by the head ofthe gage-bar and adapted to be extended to cooperate with the said arm, substantially as described.

2. In a device of tbe class described, the combination with a rule, of a gage-bar mounted on one of the legs of the rule, and arms mounted one on the other leg of the rule and the other on the gage-bar and adapted to be folded, substantially as described,

3. In a device of the class described, the combination of a rule provided at one leg with a longitudinal way and having a groove at the outer end and inner edge of the other leg, an arm pivoted in the groove and arranged to fold within the same and to be arranged transversely of the rule, a' gage-bar arranged in the said way and having a head provided with a groove, and an arm pivoted in the groove of the head and arranged to swing into the same, substantially as described.

4. In a device of the class described, the combination of a rule provided in one leg with a way, an approximately L-shaped support or casing mounted on the other leg and composed of sides spaced apart to form a groove, an arm pivoted in the support or casing and adapted to be extended therefrom, a gage-bar arranged in the said way and provided with a head having a groove, and an arm pivoted in the groove of the head and adapted to be swung outward therefrom to cooperate with the said arm, substantially as described.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in tbe presence of 'two witnesses.

WILLIAM MEYER. OTTO G. MEYER.

Witnesses CHAs. Gunnowsiiv, Mrs. WM. MEYER. 

